@inbook{2001,
title={61 To John Gordon & John Calwell,
Belfast 17 June 1756 [f. 54]},
url={http://dx.doi.org/10.1093/oseo/instance.00164073},
DOI={10.1093/oseo/instance.00164073},
booktitle={Records of Social and Economic History: New Series,
Vol. 28: Letterbook of Greg & Cunningham,
1756–57: Merchants of New York and Belfast},
publisher={British Academy},
year={2001},
month=jun,
pages={150–150} }